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EmissionsSeverity Medium: diagnose soon

P2453Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance

What it means

The DPF differential pressure sensor signal is electrically possible, but it doesn't make sense compared with other sensors or with what the engine is doing. The DPF differential pressure sensor measures the pressure difference across the diesel particulate filter.

Symptoms

  • Check engine light
  • Regeneration not running, or running too often
  • Possibly limp mode

Common causes

  • Split, blocked or swapped sensor hoses
  • Faulty sensor
  • Real DPF restriction or damage

What to check first

  1. Key on, engine off: the sensor should read close to zero
  2. Inspect the hoses and their routing
  3. Compare readings at idle and 3,000 rpm
Can I drive with P2453? Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

Known engine problems that set P2453

2.0 TDI EA189: Blocked particulate filter (DPF)Volkswagen, Audi, Skoda, Seat · typically 80,000–200,000 km

Cases with P2453 (0)

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P2453: questions and answers

What does P2453 mean?

P2453: Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance. The DPF differential pressure sensor signal is electrically possible, but it doesn't make sense compared with other sensors or with what the engine is doing. The DPF differential pressure sensor measures the pressure difference across the diesel particulate filter.

What are the symptoms of P2453?

Check engine light. Regeneration not running, or running too often. Possibly limp mode.

What causes P2453?

Split, blocked or swapped sensor hoses. Faulty sensor. Real DPF restriction or damage.

How do you diagnose P2453?

1. Key on, engine off: the sensor should read close to zero 2. Inspect the hoses and their routing 3. Compare readings at idle and 3,000 rpm

Can I drive with P2453?

Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.